web-performance

Use when writing or changing web app code (front, backend, DB) to apply performance defaults, or when asked to audit performance ("audit perf", "why is it slow") -- 31 rules across front, backend+DB and infra, each with status, evidence and user cost. Advisory: audits and recommends, never edits during the audit. Do NOT use for lint/quality (sniper) or SEO-only audits (fuse-seo).